Shutter-operating device.



P. I. MARKS.

SHUTTER OPERATING DEVICE. APPLICATION FILED uov.'4, 1915.

1,179,205. V Patented Apr. 11,1916.

UNITED STATES PATENT OFFICE. PAUL J'.. MARKS, OF ROCHESTER, NEW YORK, ASSIO'NOR TO EASTM A N KODAK COM- PANY, OF BOGHIES'JPIER, NEW YORK, ACORPORATION OF NEW.YORK.

SHUTTER-OPERATING DEVICE.

releases which are designed to take the place of theordinary bulb and tube for or attaching end of the member.

pneumatically efi'ecting bulb exposures and time exposures.

The invention has for one of its objects to providea device of this character that will trip the shutter by a pulling motion lnstead of a thrusting motion but which will still be simple in construction and in the mode of its attachment to the shutter casing or en port.

0 these and other ends the invention resides in certain improvements and combinations of parts all as will be herelnafter more fully described, the novel features being pointed out in the claims at the end of the specification.

In the drawings: Figure 1 is a front elevation of a photographic shutter provided with an operating device constructed in ac-- cordance with and illustrating one embodimentof my invention, a part of the cover plate ofthe'shutter being brolgen away to reveal interior parts; Fig. 2 1s a central longitudinal section through the outer end and finger grip of the operating member on an enlarged scale, and'Flg. 3 1s a s milar enlarged sectional view through the mner 'S ilar reference numerals throughout the several figures indicate the same parts.

In the present embodimentof the 1nv ention, I, provide an outer tubular, flexlble casin formed b a tightly wound wire helix' 1 wit a braide coverin This covering or stocking. as it iscalle is woven 1n such a way as to make it inextensible while the helical core ljhas its convolutions 'in contact with each other makin it incompressible. The casing as awho e, therefore, is

both ineitensibl and incompre ible. At its I Specification of Letters Patent;

Patented A r. 11, 1916.

' Application filed-November 4,-1915. Serial No. 59,686.

also connected to a sleeve having a tubular plug 8 threaded therein in fixed relation and between which lug and the sleeve 7 the stocking 2is con ned. The extremity of the core 1 is secured within the plug 8, as shown in Fig. 3. The sleeve 7 is formed with a knurled enlargement 9 and its end face is enlarged by a flange 10 to constitute a clutch member having a diametrical recess 11.

Within the casing is a flexible but incompressible cable 12 so that the casing and cable are relatively movable longitudinally. The outer end of the cable is fixed to a stem 13 passing centrally through the pull button 5 and itself terminating in apush button 14:. The inner end of the cable carries a rod 15 on which the sleeve 7, through the medium of the. plu 8, is adapted to slide. The rod 15 has xed thereto a nut 16 threaded into the casing or support 17 of the shutter, indicated generally at 18 in Fig. 1. The nut has"a clutch face 19 opposed to the clutch 10'on the sleeve 7 and provided with a diametrical rib 20., This rib maybe seated in the recess 11 by the rotation of the "sleeve ,7 on the rod 15 until they come in reglster and the parts are then looked together for joint rotation.

operates afinger 23 on the shutter operating member 24: pivoted at 25 and having the finger portion 26 for direct operation. When the operatin member 24 is rocked in the direction indicated by the arrow, the finger 23 rides against the master member 22 and actuates the shutter. shutter operating or controlling member 24 aslide 27 suitably guided in the shutter cas-' I also connect to the ing and having a projection 28 that takes into an aperture 29 in the finger 23. The slide terminates exteriorly of the casing in an offset forked abutment 30 which em-' braces the sleeve 7 in the path of the flange 10.

The operation of the deviceis obvious.

As the buttons and 14 are pressed togetherbetween the fingers, the thrust is taken by the cable 12. against the shutter casing and the pull is taken by the casing surrounding the cable so that the sleeve 7 slides outdrawings, the clutch faces 10 and 19 are engaged so that the rod and with it the cable and thesleeve 7 and with it the casing 12 are turned together .through the medium of the knurled finger portion 9 on the sleeve. The nut 16 is thus unscrewed and may thence be passed laterally out from beneath the forked abutment 30, the normal position of the latter 'being sufficiently spaced from the shutter casing. to permit of this. The ,deviceis applied to the shutter casing by a reversal of these movements.

I claim as my invention:

1. The combination with a shutter embodying a support and a shutter controlling element, of an inextensible, flexible, tubular casing connected to the shutter controlling member'and an incompressible thrust member contained therein and connected to the shutter support.

2. The combination with a shutter em bodying a support and a shutter controlling element, of an inextensible, flexible, tubular casing adapted to operate the shutter controlling' member, an incompressible thrust member slidably contained therein and having a threaded portion and interlocking conand tripping nections between the casing and thrust member for rotating the latter through the medium of the former to screw the thrust member into and out of the shutter casing.

3. The combination with a shutter embodying a support and a shutter controlling element, of an inextensible,-flexible, tubular casing adapted to operate the shutter controlling member and terminating in a sleeve having a clutch face and an incompressible thrust member slidably contained therein.

and terminating in a nut threaded into the shutter support and provided with a clutch face cooperating with that on the casing for the joint rotation ofthe sleeve and nut.

V 4. The combination with a shutter embodying a support and a shutter'controlling element having a forked abutment, of an inextensible, flexible, tubular casing terminating in a sleeve having a collar adapted to detachably engage with the forked abutment and provided with a clutch face, and an incompressible thrust member slidably contained in the casing and terminating in a nut threaded into the shutter support and comprising a collar having a clutch face cooperating with that on the casing sleeve for the joint rotation of the sleeve and nut.

5. A shutter operating device comprising a flexible casing and a cable slidably contained therein, one of which is incompressible and the other inextensible, the cable terminating in a threaded portion rotatable threaded .nut having a clutch face adapted to cooperate with that on the sleeve for joint rotation of the cable and easing, one of the latter elements being inextensible and the other incompressible.

PAUL J. MARKS. Witnesses:

, FRANK M. PAGE,

EDITH WATERSTRAAT. 

